Adjustable cup holder



FIG. 1 is a perspective view of an adjustable cup holder according the present design;

FIG. 2 is a side view of the adjustable cup holder; the opposite side being a substantial mirror image thereof;

FIG. 3 is a front view of the adjustable cup holder;

FIG. 4 is a top view of the adjustable cup holder; and,

FIG. 5 is a further perspective view of the adjustable cup holder folded in a stowed position.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

I claim the ornamental design for a adjustable cup holder, as shown and described. 